Can



Jan'. 5 ,1926. v 1,568,438

7 N. P. BACH CAN Filed Feb. 2, 1924 gn /"1111111114 VIII!" 4; ATTORNEYS Patented Jan. 5, 1926.

UNITED STATES PATENT ornca 31118 P. BACK, 0! IILLBUBN, NEW JERSEY, ASSIGHOB TO THEBIOKEPT CORPORA- 'IIOH, O! NEW YORK, N. Y., A CORPORATION 01 DELAWARE.

CAN.

Application fled February 2, 1924. Serial No. 690,188.

To all'whomit'ma concern:

Be it known t at I, NmLs P. BACK. :1

subject of theKing of- Denmark, residing at Millburn, in the county of Essex and State of New Jersey, have made a certain new and useful Invention in Cans, of which the following is a specification.

This invention relates to improvements in cans, and in particular to that class of cans which are 0 ened by tearing a strip of metal from t e can body by rolling it on a ,key to thereby 0 en the can.

It is one of t e prime objects of my invention to facilitate the removal of said opening strip and to secure clean-cut, smooth edges as the strip is removed and the can opened. 7

Another object includes the provision of a can body blank which is provided with parallel scorings, or weakened regions, on either side or on both sides of the metal sheet to provide the removable strip in the sealed can.

To. further render the removal of the scored opening strip absolutely reliable, I

- due to faulty and insuflicient scoring, or to other causes, as grossly uneven rolling of the metal on the key.

A still further object includes the provision of a simple can blank which is provided with a weakened area, at no material increase of cost in production, and whereby the plan is opened with certainty and disatc p Other objects will appear hereinafter, and I attain these objects by the construction illustrated in the accompanying drawing, in which: I

Fig. 1 is a View in elevation of a can which is made in accordance with the principles of my invention.

Fig. 2 is a view taken on'lines 2-2 of Fig. 1, looking in the direction of the arrows.

Fig. 3 is a edge view of a ortion of the can body blank which is provided with parallel scorings in accordance with my inven-' tion.

Fig. 4 is a plan view of a portion of the blank, showing the-under lap-seam portion.

Fi 5 is a view similar to that of Fig. 4 but s owing the outer lap-seam portion and the extending key lip.

Fig. 6 is a view showing a slightly modified form of construction and taken on lines 6-6 of Fig. 7 v

Fig. 7. is a view similar to that shown in Fig. 4, but illustrating the double parallel scoring as applied to the can body.

Fig. 8 is a view similar to that shown in Fig, 5, but illustrating the double scoring as it is applied to the can body.

Likenumerals refer to similar parts throughout the several views.

It has been proposed to overcome the inconvenience and difliculty of opening sealed cans b use of an opening key, but one of the chief drawbacks to key opened cans is found to reside in the tendency of the opening strip to run out and tear off before the can is opened, and it is the purpose of my invention .to provide sim 1e but efiicient.

means to overcome this de ect.

To this end I provide th e'can blank 10, from which the can body 11 of the finished can is made, with parallel scorings12, 12 and 13, 13. In a preferred form, to which, however, I do not desire to be limited, scorings 12, 12 are parallel and of the desired distance to form the proper width for an opening strip 14. If scorings 12, 12 are formed on the surface of the metal which forms the outer surface of the finished can. then scorings 13, 13 are formed on the side of the metal which forms the inner surface of the can. In any event are the parallel scorings 12, 12 and 13, 13 directly opposite each other and of such depth as to insure safe and' absolute removal of the strip when the can is to be opened. The opening is conveniently accomplished by the conventional key 15 being applied .to the tongue 16 of strip 14 and turned to roll the weakened ,opening strip 14 on the key. To facilitate starting the strip to roll properly, I provide notches 17 at the beginning of the weakened area. By thus providing a can body with oppositely placed or double arallel scorings, I am enabled to quic 1y, easily and with certainty open a sealed can and at the same time leave the edges thus formed practically smooth and without sharp projections.

.and are greatly desired for their convenience in opening and for use as cans with suitable covers. The covers may be hmgedly attached to the can body, in accordance with.

my invention setforth in my co-pending application Serial No. 685,100, filed January 9, 1924, or the hinge may be omitted if desired. To guard against insufiicient or faulty scoring, due to inequalities of the scoring rolls,

-or to other causes, whereby scorings 12, 12 and 13, 13, might prove insufiicient, I provide secondary or safety scorings 19, 19 and 20, 20. 'Scoring 19, 19 is parallel with scoring 12, 12 and lies closely adjacent thereto. Scoring 20,20 is directly opposite scoring 19, 19 and consequentl said scoring is adjacent to and parallel with scoring 13, 13. By this safety device it is obvious that, where, through-insufiicient or. defective scoring of 12, .12 and 13, 13, the removal of strip 14 be not along the outer scorings 12, 12 and 13, 13 and a run begins inwardly on strip 14., as is usually the case, the secondary scorings 19, 19 and 20, 20 will prevent further riinning inwardly of the tear on strip 14 and the opening will proceed either along the secondary seorings or will again resume its normal course along the primary scorings.

In manufacturing my improved can, I

cut the blank body 10 from the metal sheet and at the same time provide the scorings and the key lip. The can body is then formed in the usual manner well known to the art. If a lap seam is formed at and near the scored area, as is preferred, the solder will serve to fill the scoring groove at 21 to form a perfect seal. 7 The key tongue will then lie flat against the can body to be bent up for the key, in the manner shownin Fig. 2 when the can is to be opened.

Having shown and disclosed my invention, what I claim as new and useful, of my own invention, and desire to secure by Letter Patent is: W i 1. A sealed package comprising a. can having parallel 'scorings'within and without the can body whereby the packageis opened.

W 2. A sealed package in the form of. a can having double soorings on opposite sides of es es 7 whereby the weakened scored area is easily removed to open the sealed package.

3. A sealed package in the form of a can having double and parallel scorings within and Without to. form a weakened area, and a ton ue extending beyond said scorin where y the weakened scored area is easi y removed to open the sealed package.

4. A sealed package provided with scorings, within and without the can to form a weakened strip, and means for removing said weakened strip.

5. A sealed package provided with double scorihgs within and without. the can to form a weakened strip, and means for removing said weakened strip.

\6. A body blank for cans, comprising a sheet having parallel scorings on one side and correspondingly placed parallel scorings on the opposite sideto form a weakened strip.

metal sheet having a tongue extension,

7. A body blank for cans, comprising a notches cut into an edge of said sheet adjacent said tongue, and parallel scorings extegding. across; said sheet on its opposite s1 es.

8. A body. blank; comprising a metal sheet, a tongue extending from one edge of said sheet, said blank lravinga notch on each side of the tongue near the edge of the sheet, and double scorings extending from said notches across the sheet on opposite sides of said sheet.

9. A body blank comprising a metal sheet, a tongue extending from one edge of said sheet, said blank having a plurality of V- shaped cuts lying in a plane substantially at right angles to the blank surface. 7

10. A body blank comprisinga sheet cut to form the walls of a container, a tongue extending from one edge of the sheet, said sheet being provided with notches in one edge thereof at the base of the tongue, and weakened de ressions in bothsurfaces of said sheet, said depressionslying in substantially parallel lanes, by passing throu h said notches and being perpendicularto t e surface of said sheet.

In testimony whereof-I have hereunto set my hand on this 30th day of January A. D.

1924. I f the canfibody to form a weakened band, and

a longue extending beyond said scorings 

